Synonyms: SennosideC (7CI);[9,9'-Bianthracene]-2-carboxylic acid, 5,5'-bis(b-D-glucopyranosyloxy)-9,9',10,10'-tetrahydro-4,4'-dihydroxy-2'-(hydroxymethyl)-10,10'-dioxo-,(R*,R*)-;5,5'-bis(β-D-glucopyranosyloxy)-4,4'-dihydroxy-2'-(hydroxymethyl)-10,10'-dioxo-9,9',10,10'-tetrahydro-9,9'-bianthracene-2-carboxylic acid;